diff --git a/README.md b/README.md
index db4508a..5feccb6 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The [documentation](https://arnaud.le-blanc.net/php-rdkafka/phpdoc/book.rdkafka.
 can help out to understand the internals of this library.
 
 ## Requirements
-- php: ^7.3
+- php: ^7.3|^8.0
 - ext-rdkafka: >=4.0.0
 - librdkafka: >=0.11.6 (if you use `<librdkafka:1.x` please define your own error callback)
 
diff --git a/composer.json b/composer.json
index 5d4b593..a8c2312 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "rdkafka"
   ],
   "require": {
-    "php": "^7.3",
+    "php": "^7.3|^8.0",
     "ext-rdkafka": "^4.0|^5.0",
     "ext-json": "*"
   },